Hoffer, J. A., George, J. F., & Valacich, J. S. (2000). Modern systems analysis and design (Second edition.). Addison-Wesley; Pearson Education Asia.
Lua i Stíl Chicago (17ú heag.)Hoffer, Jeffrey A., Joey F. George, agus Joseph S. Valacich. Modern Systems Analysis and Design. Second edition. Reading, Mass. : New Delhi: Addison-Wesley; Pearson Education Asia, 2000.
Lua MLA (8ú heag.)Hoffer, Jeffrey A., et al. Modern Systems Analysis and Design. Second edition. Addison-Wesley; Pearson Education Asia, 2000.
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